Box-pasting machine



R. J. SCHWARTZ & E. J. RETZBACH BOX PASTING MACHINE.

APPLICATHJN FILED JULY l, 1914- 1 ,1 94,244. Patented Aug. 8, 1916.

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R. J. SCHWARTZ & E. i. RETZBACH. BOX PASTING MACHINE. 1,194,244.

APPLICATION FILED JULY 1, 1914.

Patented Aug. 8, 1916.

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ROBERT J'. SCHWARTZ AND EDWARD J. RETZBACH, F LOUIS, MISSOURI.

BOX-PASTING MACHINE.

Specification of Letters Patent.

Patented Aug. 8, 1916.

To all whom it may concern:

Be it known that we, ROBERT J. SCHWARTZ and EDWARD J. RETZBAGH, both citizens of the United States, and residing at St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Box- Pasting Machines, of which the following is a specification.

This invention relates to a box pasting machine.

In a box, such as described in an application of Edward J. Retzbach, Serial No. 839,981, filed May 21, 191 1, a liner is provided which is turned over the edges of the box and is pasted against the outside face aroundthe box. The liner is left entirely loose except where it is turned over the edge of the box. If it is attempted to apply such a liner to a box, the labor will be necessarily considerable, and, moreover, it is diflicult to turn over the edge of the liner and make a neat job.

One of the objects of this invention, therefore, is, to provide a machine for applying paste to the box so that a liner can be applied thereto.

Other objects are, to construct a machine which is simple in its construction and op.- eration, in which the work can be accomplished with great rapidity, and which is cheap to manufacture.

Further objects will. appear from the detail description taken in connection with the accompanying drawings, in which:

Figure 1 is a plan of a machine embody ing this invent-ion, Fig. 2 is a side elevation, Fig. 3 is a'sectionon the line 3-3, Fig. 1, Fig. 4 is a detail perspective view of one of the pasting members, Fig. 5 is an enlarged detail section of Fig. 3, showing the parts in the position shown in Fig. 2, Fig. 6 is an enlarged detail of the pasting member actuating cam, Fig.7 is an enlarged side elevation of Fig. 6, and Figs. 8 and 9 are detail sections showing another embodiment of this invention.

Referring to the accompanying drawings, 10 designates a base or support having legs 11. This base is provided with a boss 12 bored to receive a standard 13 threaded, at its upper end, into a hollow mandrel 14:. This mandrel is movable vertically on the base, and, in order to hold it against rotation, the base is provided with dowels 15 entering bosses 16 on the mandrel. A spring 17 on the standard 13 bears, atone end,

against the base and, atthe other end, against the upper part of the mandrel so as to normally hold the mandrel in raised position, as shown in Fig. 2. The standard 13 is provided with a nut 18 arranged to engage the boss 12 and restrict the upward movement of the mandrel.

The base 10 is provided with ledges 20 and 21 adapted to form a paste font 22 extending completely around the mandrel. Shafts 23 are rotatively mounted in lugs2d on the base 10. Each shaft has rigidly mounted thereon a pair of arms 25 carrying, at their ends, a cross bar 26 provided on its upper surface with a facing of felt 27. The bars and the facings thereon are of lengths corresponding to the length and width of the box which is to be placed upon the man drel. Each shaft has loosely mounted thereon a c0llar 28 provided with a lug 29 engaged by one end of a spring 30 which oncircles and whose other end is fixed to the shaft 23. A pin 31 engages a slot or notch in the collar. The spring 30 normally tends to hold the collar with the upper end of the notch 32 (Fig. 7 in engagement with the pin. The cam lug 33 on the collar has a cam face extending underneath and engaged by a cooperating cam lug 3a on the mandrel. Each shaft may be provided with a spring 35 coiled on'the shaft and attached, at one end, thereto and having its other end bearing against the adjacent lug 24, so as to normally hold the pasting members in the font, as shown in Figs. 1, 2 and 5. A. domeshaped cover 37, having a flange 38 resting 2n the ledge 20,. surrounds and covers the ont.

The mandrel is normally held in raised position by its spring 17, and this will cause the pasting members to be held in the font under the action of the springs 35 and by gravity, as shown in Figs. 1, 2 and 5. The box B to be pasted is now placed upon the mandrel and pressure exerted on the box, so as to depress the mandrel. This will cause the cam faces 34; on the mandrel to engage the cam lugs 33, projecting thereunder, and swing the pasting members out of the font and against the sides and ends of the box, as shown in Fig. 3. The parts are so constructed that, when the mandrel is in depressed position, as shown in Fig. 3, the pasting members will be in a position to engage the box along its edges, so as to apply a band of paste along the edges of the box and completely around the same. As the pasting members are moved into position and against the box, the springs 30 will yield so as to permit the pasting members to move yieldingly into engagement with the box, and since these pasting members are supported at their ends while the cam lugs 33 are at the centers of the shafts 23, the pressure of the pasting members against the box will be uniform, so that the paste will be applied uniformly. lVhen the mandrel is released, the pasting members will move, under the action of the springs 35 and by gravity, back into the font, and the box can then be removed.

Referring now to Figs. 8 and 9, the pasting means comprises, in this case, rollers which are engaged by the box edge as the mandrel moves down. On each side of the mandrel is mounted a pair of brackets 40 loosely supporting a roll 41, of brass or other suitable material, which dips into the font 22. A smaller roll 42, also loosely mounted between the brackets, engages the roll 41 and is also in a position to be lightly engaged by the box B as the mandrel moves down. The shaft of the roll 41 has mounted thereon a ratchet 43 engaged by a pawl 44 on the bracket 40. This pawl and ratchet are so constructed that, when the rolls move in the direction of the arrows, the pawl will snap over the ratchet, while return movement of the rolls is prevented. It will be understood that there are four sets of rolls corresponding to the four sides of the mandrel, and that the other parts are of the same construction as shown in Figs. 1, 2 and 8. In the operation of this embodiment, the box B is placed on the mandrel, as in the other embodiment, and the mandrel is then depressed. As the mandrel and box move down from the position shown in Fig. 8 to the position shown in Fig. 9, the lower edge of the box will wipe against the rolls 42 so that these rolls will apply the paste thereto. When the box returns, the roll will remain stationary, but since these rolls only lightly engage the box, sufficient paste will remain on the edges to receive the lining. As the roll 42 is rotated, the supply roll 41 will supply the pasting roll 42 with the paste, and, since the rolls only rotate in one direction, it is insured that a fresh pasting surface will come in contact with the box every time that it is depressed.

It will therefore, be seen that the invention accomplishes its objects. A machine is produced with which the box can be rapidly supplied with paste placed in a predetermined position thereon, namely, as a band of paste extending around the box at its edge. The paste will drain back into the font, and the cover prevents this paste from being thrown out by the pasting members.

The device is simple construction, as

well as operation, and there are no parts liable to get out of order. The font is entirely open and there is no mechanism in the font which can clog with the paste or get out of order.

The machine for applying the lining to a box pasted in the manner described, is shown and described in our co-pending application Serial Number 848,392, filed of even date herewith.

It is obvious that various changes may be made in details of construction without departing from the spirit of this invention, and it is, therefore, to be understood that this invention is not to be limited to the specific construction described and shown.

Having thus described the invention, what is claimed is:

1. A box machine comprising a support, means for holding a box thereon, pasting means on said support disposed and operable for applying a streak of paste simultaneously along the edges of a plurality of the outer faces and adjacent the open end of the box, and means controlled by relative movement of said box holding means and support for efi'ecting said paste applying operation.

2. A box machine comprising a support, means for positioning a box on said support, pasting means, and means operable by movement of the box to move said pasting means into engagement with the box, adapted to apply paste along the edges of said 3. A box machine comprising a support, means for positioning a box on said support, a paste font, pasting means, and means operable by movement of the box to move said pasting means from said font into engagement with the box, adapted to apply paste along the edges of said box.

4. A box machine comprising a support, a

box mandrel movably mounted on said support, and pasting means operable by movement of said mandrel to move into engagement with the outer face of the box, adapted to apply paste adjacent the edge thereof.

5. A box machine comprising a support, a

box mandrel mounted over said support, a font on said support and extending around said mandrel, and pasting means movable from said font into engagement with the movement toward and from the same, a font on said support extending around said mandrel, and pasting means normally in said font and movable by said mandrel into engagement With the box on said mandrel.

8. A box machine comprising a support, a box mandrel mounted on said support for movement toward and from the same, pasting means, and means on said pasting means adapted to be engaged by said mandrel to move said pasting means into engagement with an outer face of the box.

9. A box machine comprising a support, a box mandrel mounted on said support for movement toward and from the same, pasting members pivoted on said support, and lugs on said pasting members engaged by said mandrel to move said pasting means into engagement With the box.

10. A box machine comprising a support, a box mandrel mounted on said support for movement toward and from the same, a font on said support extending around said mandrel, pasting members pivoted on said sup port and lugs on said pasting members engaged by said mandrel, adapted to move said pasting members from said font into engagement With the box.

11. A box machine comprising a support, a box mandrel sustained thereon, pasting means, and means for operating said pasting means to apply paste simultaneously to a plurality of faces of a box on the mandrel.

12. A box machine comprising a support, a box mandrel mounted on said support for movement toward and from the same, and pasting devices arranged on the support around said mandrel to engage the several sides of the box adjacent its edges.

In testimony whereof We aiiix our signatures in the presence of these two Witnesses.

ROBERT J. SCHWARTZ. EDWARD J. RETZBACH.

Witnesses:

J. H. BRUNINGA, ARTHUR B. GREMER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

